Before making a real quantum photonic computer, the photonic circuit must at least first be equal to the traditional microprocessor that it wants to replace in terms of multitasking efficiency. Now, a research team from the University of Bristol claims that they have created such a photonic chip. Compared to today's digital electronic microprocessors, optical quantum computers promise to deliver exponential growth speed and performance. Researchers from the University of Bristol and the Japan Telegraph and Telephone Corporation (NTT) are also working hard to move toward this goal.
A new breakthrough in photonic chips will bring a quantum leap in quantum computing
It is reported that the research team at Bristol University and NTT has claimed to have developed a fully programmable quantum optics chip that can encode and manipulate photons to implement a myriad of methods.
The "substrate" of the chip is still a common glass and silicon material, as well as previous photonic chip research results - the integration of six waveguides for general linear optical conversion and 15 sets of interferometers (superimposing one photon beam onto another) To find the strength or phase of the anomaly).
As a result, the quantum processor can perform a variety of different operations at the same time. Even better, the chip's architecture is very stable and has features that can be quickly reprogrammed.
In this way, we can use software code to achieve continuous fast (or concurrent) execution in a wide range, as well as countless future agreements.
Jacques Carolan, a team researcher and Dr. Bristol, said:
"Once we write the code for each circuit, it takes a few seconds to reprogram the chip and switch to the new experiment in ms time.
We are very excited to be able to complete an experiment that takes a whole year to complete in a matter of hours. For these chips that are still in development, we have not even thought about new disciplines. . .
The chip has been manufactured and packaged, and in theory, we can perform thousands of different experiments in a single day, which was unimaginable a few years ago."
A new breakthrough in photonic chips will bring a quantum leap in quantum computing
From left to right, Chris Sparrow, Chris Harrold, Jacques Carolan, and Anthony Laing from the University of Bristol.
The number of photon I/Os also means that new processors can be applied to new applications that can be used to perform Boolean functions equivalent to standard electronic logic processors (also known as "quantum gates" / quantum gates ).
The so-called "one-time execution of a significant number of computational processes" means the performance of a standard logic array that it can simulate. The inherent flexibility of this technology also means the "universality" of general-purpose quantum computers (such as effectively simulating an arbitrary state of a digital computer).
Although still on a "modest scale," researchers have promised to design and build a large, universal quantum computer. The next phase of development is to expand its capabilities and performance, and then use it for verification at NTT and other computer network partners such as telecommunications.
In order to encourage the research and development of quantum computing, the University of Bristol also pioneered the Quantum in the Cloud service, which allows everyone to publicly access the running quantum processor through the Internet, and plans to join in the near future. More chips.
Professor Jeremy O'Brien, director of quantum photonics at the University of Bristol, said: "In the past 10 years, we have established an ecosystem of photon quantum technology that enables the best talents in the quantum information science community and engineering in the telecommunications industry. Linked to established research. To achieve our vision of quantum computer models, this model must be encouraged."
A paper on this research has been published in the recently published issue of Science.
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